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x86: Delete UD0, UD1 traces

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Both instructions aren't used by kernel.

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/YIHHYNKbiSf5N7+o@localhost.localdomain
This commit is contained in:
Alexey Dobriyan 2021-04-22 21:58:40 +03:00 • committed by Thomas Gleixner
parent 3cf4524ce4
commit 790d1ce71d
1 changed files with 0 additions and 9 deletions
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9
arch/x86/include/asm/bug.h
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@ -7,18 +7,9 @@
/* /*
* Despite that some emulators terminate on UD2, we use it for WARN(). * Despite that some emulators terminate on UD2, we use it for WARN().
*
* Since various instruction decoders/specs disagree on the encoding of
* UD0/UD1.
*/ */
#define ASM_UD0 ".byte 0x0f, 0xff" /* + ModRM (for Intel) */
#define ASM_UD1 ".byte 0x0f, 0xb9" /* + ModRM */
#define ASM_UD2 ".byte 0x0f, 0x0b" #define ASM_UD2 ".byte 0x0f, 0x0b"
#define INSN_UD0 0xff0f
#define INSN_UD2 0x0b0f #define INSN_UD2 0x0b0f
#define LEN_UD2 2 #define LEN_UD2 2
#ifdef CONFIG_GENERIC_BUG #ifdef CONFIG_GENERIC_BUG